My brother's marriage partner, Mio, is beautiful and seems to be a young lady. It's a so-called reverse ball. There is such a difference between me and my brother, who haven't had much difference in academic ability and physical strength until now ... However, from the first glance at Mio-san, that didn't matter. I don't think my sister-in-law is such a beautiful and preeminent person. My sister-in-law is tempted to notice my gaze. Of course, I couldn't refuse, and I just had vaginal cum shot sex ...